package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import freemarker.log.Logger;

public class LogFilter implements Filter{

	@Override
	public void destroy() {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		Logger logger = Logger.getLogger(this.getClass().toString());
		HttpServletRequest httpRequest = (HttpServletRequest)request;
		if(httpRequest.getHeader("x-forwarded-for") != null){
			logger.info(httpRequest.getHeader("x-forwarded-for"));
		}else{
			logger.info(httpRequest.getRemoteAddr());
		}		
		chain.doFilter(request, response);
		
	}

	@Override
	public void init(FilterConfig config) throws ServletException {		
	}

}
